June 26 (UPI) -- A federal judge let Meta off the hook for the use of books to train its artificial intelligence model, but it still might face legal challenges by the authors in other ways.

United States District Judge Vince Chhabria ruled Wednesday that it wasn't unlawful for Meta to feed copyrighted material to its large language models, or "Llama," because of the doctrine of "fair use."

Chhabria wrote in his ruling that the use of copyrighted works by companies to train generative AI models, are using the materials in a creative fashion, which in copyright law is considered a "transformative" use as the Copyright Act says the use of copyrighted materials to teach, research, criticize, comment or report news is not infringement.

Conversely, the judge also noted that creating a new product by way of copying a protected work and then marketing that product could potentially harm the markets that carry the original materials.

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